Plasticity improvement of ZrCu-based bulk metallic glass by ex situ dispersed Ta particles

J. B. Li; J. S.C. Jang; S. R. Jian; K. W. Chen; J. F. Lin; J. C. Huang

doi:10.1016/j.msea.2011.08.006

Plasticity improvement of ZrCu-based bulk metallic glass by ex situ dispersed Ta particles

J. B. Li, J. S.C. Jang, S. R. Jian, K. W. Chen, J. F. Lin, J. C. Huang

材料科學與工程研究所

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

38 引文斯高帕斯（Scopus）

摘要

The (Zr₄₈Cu₃₆Al₈Ag₈)_99.25Si_0.75-based bulk metallic glass composite (BMGC) rods ex situ dispersed with Ta particles (with a diameter of 2-4mm) have been successfully fabricated by suction casting and characterized. These Ta-added BMGCs exhibit similar thermal properties in comparison with its base alloy counterpart, with relatively high glass forming ability (GFA). The results of compression test show that a superior mechanical performance with up to 22% compressive plastic strain, 1800MPa yield strength and 1850MPa fracture strength at room temperature can be obtained for the 2mm diameter rod of the ZrCu-based BMGC with 10vol.% Ta particles. These ex situ dispersed Ta particles (20±8μm) would arrange as semi-uniform confinement zones to restrict the shear band propagation. In addition, for a given Ta particle size, higher volume fraction particles would lead to more interfacial areas, shorter inter-particle spacings, smaller confinement zone sizes than the smaller volume fraction particles, and results in presenting larger compression plasticity.

原文	???core.languages.en_GB???
頁（從 - 到）	8244-8248
頁數	5
期刊	Materials Science and Engineering A
卷	528
發行號	28
DOIs	https://doi.org/10.1016/j.msea.2011.08.006
出版狀態	已出版 - 25 10月 2011

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10.1016/j.msea.2011.08.006

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title = "Plasticity improvement of ZrCu-based bulk metallic glass by ex situ dispersed Ta particles",

abstract = "The (Zr48Cu36Al8Ag8)99.25Si0.75-based bulk metallic glass composite (BMGC) rods ex situ dispersed with Ta particles (with a diameter of 2-4mm) have been successfully fabricated by suction casting and characterized. These Ta-added BMGCs exhibit similar thermal properties in comparison with its base alloy counterpart, with relatively high glass forming ability (GFA). The results of compression test show that a superior mechanical performance with up to 22% compressive plastic strain, 1800MPa yield strength and 1850MPa fracture strength at room temperature can be obtained for the 2mm diameter rod of the ZrCu-based BMGC with 10vol.% Ta particles. These ex situ dispersed Ta particles (20±8μm) would arrange as semi-uniform confinement zones to restrict the shear band propagation. In addition, for a given Ta particle size, higher volume fraction particles would lead to more interfacial areas, shorter inter-particle spacings, smaller confinement zone sizes than the smaller volume fraction particles, and results in presenting larger compression plasticity.",

keywords = "Casting, Composites, Dispersion strengthening, Mechanical properties at ambient temperature, Metallic glasses",

author = "Li, {J. B.} and Jang, {J. S.C.} and Jian, {S. R.} and Chen, {K. W.} and Lin, {J. F.} and Huang, {J. C.}",

note = "Funding Information: The authors are gratefully to acknowledge the sponsorship by National Science Council of Taiwan, ROC , under the Project No. NSC95-2210-E-214-015-MY3 and NSC98-2221-E-008-116-MY3. In addition, the authors also like to acknowledge the help on SEM and TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.",

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doi = "10.1016/j.msea.2011.08.006",

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T1 - Plasticity improvement of ZrCu-based bulk metallic glass by ex situ dispersed Ta particles

AU - Li, J. B.

AU - Jang, J. S.C.

AU - Jian, S. R.

AU - Chen, K. W.

AU - Lin, J. F.

AU - Huang, J. C.

N1 - Funding Information: The authors are gratefully to acknowledge the sponsorship by National Science Council of Taiwan, ROC , under the Project No. NSC95-2210-E-214-015-MY3 and NSC98-2221-E-008-116-MY3. In addition, the authors also like to acknowledge the help on SEM and TEM analysis by the Micro and Nano Analysis Laboratory of I-Shou University.

PY - 2011/10/25

Y1 - 2011/10/25

N2 - The (Zr48Cu36Al8Ag8)99.25Si0.75-based bulk metallic glass composite (BMGC) rods ex situ dispersed with Ta particles (with a diameter of 2-4mm) have been successfully fabricated by suction casting and characterized. These Ta-added BMGCs exhibit similar thermal properties in comparison with its base alloy counterpart, with relatively high glass forming ability (GFA). The results of compression test show that a superior mechanical performance with up to 22% compressive plastic strain, 1800MPa yield strength and 1850MPa fracture strength at room temperature can be obtained for the 2mm diameter rod of the ZrCu-based BMGC with 10vol.% Ta particles. These ex situ dispersed Ta particles (20±8μm) would arrange as semi-uniform confinement zones to restrict the shear band propagation. In addition, for a given Ta particle size, higher volume fraction particles would lead to more interfacial areas, shorter inter-particle spacings, smaller confinement zone sizes than the smaller volume fraction particles, and results in presenting larger compression plasticity.

AB - The (Zr48Cu36Al8Ag8)99.25Si0.75-based bulk metallic glass composite (BMGC) rods ex situ dispersed with Ta particles (with a diameter of 2-4mm) have been successfully fabricated by suction casting and characterized. These Ta-added BMGCs exhibit similar thermal properties in comparison with its base alloy counterpart, with relatively high glass forming ability (GFA). The results of compression test show that a superior mechanical performance with up to 22% compressive plastic strain, 1800MPa yield strength and 1850MPa fracture strength at room temperature can be obtained for the 2mm diameter rod of the ZrCu-based BMGC with 10vol.% Ta particles. These ex situ dispersed Ta particles (20±8μm) would arrange as semi-uniform confinement zones to restrict the shear band propagation. In addition, for a given Ta particle size, higher volume fraction particles would lead to more interfacial areas, shorter inter-particle spacings, smaller confinement zone sizes than the smaller volume fraction particles, and results in presenting larger compression plasticity.

KW - Casting

KW - Composites

KW - Dispersion strengthening

KW - Mechanical properties at ambient temperature

KW - Metallic glasses

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Plasticity improvement of ZrCu-based bulk metallic glass by ex situ dispersed Ta particles

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